A Study to Evaluate the Immune Response and Safety of an Influenza Vaccine in Adults 18 Years of Age and Above

Inclusion criteria

• . Participants, who, in the opinion of the investigator, can and will comply with the requirements of the protocol (e.g., completion of the eDiary, attendance to study contacts and study site visits, and ability to access and utilize a phone or other electronic communications) independently or with the assistance of a caregiver.
• . Written (physically, or digitally) informed consent obtained from the participant prior to performance of any study-specific procedure.
• . A male or female at least 18 YOA at the time of the screening.
• . Healthy participants or medically stable patients as established by medical history, and clinical examination. Participants with chronic medical conditions with or without specific treatment (e.g., chronic metabolic, cardiac, pulmonary, renal, neurologic, and hematologic diseases) are allowed to participate in this study, if considered by the investigator as medically stable. A stable medical condition is defined as disease not requiring significant change in therapy or hospitalization for worsening disease during 3 months before enrollment.
• . Female participants of non-childbearing potential may be enrolled in the clinical study.
• . Female participants of childbearing potential may be enrolled in the clinical study, if the participant:
• . Body mass index (BMI) between18 kg/m\^2 and 33kg/m\^2.

Exclusion criteria